Magnetic stirring bars provide effective stirring of samples via magnetic manipulation. Many models feature an octagonal shape with a central integrated pivot ring for optimal turbulence while stirring thanks to a greater surface area. Commonly coated in Teflon to provide chemical inertness; occasionally glass will be the coating for use with most liquid alkali metals and alkali metal solutions in ammonia. Both of these coatings are inert and will not contaminate or react with the reaction solution.
Magnetic stirring bars, cylindrical, PTFE-encapsulated
Supplier: LP ITALIANA
PTFE-encapsulated magnetic stirring bar.
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Magnetic stirring bars, PTFE, tandem, BOLA
Supplier: Bohlender
Tandem shaped magnetic stirrer bars with magnetic core of Alnico 5 encapsulated in PTFE. The centre bore structure is used for receiving bearing neck or a glass neck. In these stirrer bars reduction of running surface to a ring minimises friction and increases lifespan.
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Magnetic stirring bars, PTFE, large cylindrical, Spinbar®, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
Spinbar® magnetic stirring bars with Alnico V magnet encapsulated in PTFE. The multifaceted stirring bar surface adds turbulence relative to similar size smooth cylindrical stirring bars.
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Magnetic stirring bars, PTFE, cross-shaped, Spinplus®, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
Spinplus® magnetic stirring bars improve speed and efficiency of mixing.
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Magnetic spin vanes for use with NextGen™ V Vials®, WHEATON®
Supplier: DWK Life Sciences
These stirring bars are 'V' shaped and are constructed with a cross-mounted, moulded-in magnetic bar.
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Magnetic stirring bars, PTFE, cross-shaped, BOLA
Supplier: Bohlender
Cross shaped magnetic stirrer bars with magnetic core of Alnico 5 magnet encapsulated in PTFE. Due to stable position optimum stirring can be achieved.
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Magnetic stirring bars, PTFE, Spinvane®, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
Spinvane® magnetic stirring bars are made of PTFE and have a cross-mounted, moulded-in Alnico magnet.
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Magnetic stirring bars, Pyrex® glass, Spinbar®, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
These Spinbar® Pyrex® glass encapsulated Alnico magnet stirring bars are useful for high temperature stirring up to 274 ˚C (525 ˚F).
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Magnetic stirring bars, octagonal, rare earth, Spinbar®, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
These stirring bars reduce the frequency of spinout in viscous solutions or when stirring at high speeds. The high magnetic field strength of samarium cobalt (Rare Earth) magnets can provide up to three times stronger coupling versus Alnico magnetic stirring bars. Stronger coupling with the drive magnet keeps the stirring bar centered and rotating effectively.
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Magnetic stirring bars, double-ended
Supplier: SEMADENI
Double ended magnetic stirring bars provide excellent centering, limited contact surface and high turbulence even at low speeds.
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Magnetic stirring bars, cylindrical
Supplier: SEMADENI
Magnetic stirrer bars with permanent magnetic core and white PTFE coating.
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Magnetic stirring bars, PTFE, Spinfin®, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
Spinfin® magnetic stirring bars agitate liquids in round bottom vessels such as test tubes, cylinders and flasks where other stirring bars cannot be used. Bars maintain their position in a vessel and will not wobble.
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Magnetic stirring bars, with pivot ring
Supplier: KARTELL
PTFE coated suitable for use in containers with irregular bottom.
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Magnetic stirring bars, oval, PFTE
Supplier: SciLabware
PTFE covered, suitable for use in round bottomed flasks.
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Magnetic stirring bars, PTFE, square, BOLA
Supplier: Bohlender
Square shaped magnetic stirrer bars with magnetic core of Alnico 5 encapsulated with PTFE.
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Magnetic Stirring Bars, PTFE, cylindrical, with pivot ring, BOLA
Supplier: Bohlender
PTFE coated stirring bars. Provide excellent centering and smooth stirring.
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Magnetic stirring bars, cylindrical, PTFE
Supplier: SciLabware
PTFE covered, plain design with rounded ends, suitable for use in a wide range of flat bottomed containers.
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Magnetic stirring bars, PTFE, octagonal, with centre ring
Supplier: Brand
These octagonal shaped PTFE magnetic stirrer bars are ideal for vessels with slightly uneven bottoms. The angular surface creates high turbulence even at low speeds.
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Magnetic stirring bars, PTFE, with crosshead on both sides, BOLA
Supplier: Bohlender
Magnetic stirrer bars with magnetic core of Alnico 5 encapsulated in PTFE. Cross heads are present on both sides.
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Magnetic stirring bars, PTFE, polygonal, without pivot ring, Spinbar®, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
Polygonal PTFE encapsulated stirring bars.
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Magnetic Stir Bar, PTFE-Coated
Supplier: HELLMA
For use with cell types: 109.000, 109.000F, 109.004, 109.004F, 119.000, 119.000F, 119.004, and 119.004F.
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Magnetic stirring bars, PTFE, octagonal, with pivot ring, Spinbar®, SP Bel-Art
Supplier: Bel-Art Products, a Part of SP
PTFE encapsulated octagonal magnetic stirring bars with integral pivot ring are the most commonly used shape. Their interrupted profile provides greater surface area and added turbulence when compared to the smooth surface of cylindrical bars.